CREATE TABLE WA(a nvarchar(5));
CREATE TABLE NT(a nvarchar(5));
CREATE TABLE SA(a nvarchar(5));
CREATE TABLE Q(a nvarchar(5));
CREATE TABLE NSW(a nvarchar(5));
CREATE TABLE V(a nvarchar(5));
CREATE TABLE T(a nvarchar(5));



INSERT INTO WA values ('red'),('green'),('blue');
INSERT INTO NT values ('red'),('green'),('blue');
INSERT INTO SA values ('red'),('green'),('blue');
INSERT INTO Q values ('red'),('green'),('blue');
INSERT INTO NSW values ('red'),('green'),('blue');
INSERT INTO V values ('red'),('green'),('blue');
INSERT INTO T values ('red'),('green'),('blue');


SELECT * FROM WA, NT, SA, Q, NSW, V, T
WHERE WA.a != NT.a and WA.a != SA.a and NT.a != SA.a
    and NT.a != Q.a and SA.a != Q.a and SA.a != NSW.a
    and SA.a != V.a and Q.a != NSW.a and NSW.a != V.a